Merge codereview.chromium.org/630243002 onto 2171 branch

extensions/browser/content_verify_job.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef EXTENSIONS_BROWSER_CONTENT_VERIFY_JOB_H_
 #define EXTENSIONS_BROWSER_CONTENT_VERIFY_JOB_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 60 matching lines @@
    public:
     // These methods will be called inside BytesRead/DoneReading respectively.
     // If either return something other than NONE, then the failure callback
     // will be dispatched with that reason.
     virtual FailureReason BytesRead(const std::string& extension_id,
                                     int count,
                                     const char* data) = 0;
     virtual FailureReason DoneReading(const std::string& extension_id) = 0;
   };
 
+  class TestObserver {
+   public:
+    virtual void JobStarted(const std::string& extension_id,
+                            const base::FilePath& relative_path) = 0;
+
+    virtual void JobFinished(const std::string& extension_id,
+                             const base::FilePath& relative_path,
+                             bool failed) = 0;
+  };
+
   static void SetDelegateForTests(TestDelegate* delegate);
+  static void SetObserverForTests(TestObserver* observer);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ContentVerifyJob);
 
   virtual ~ContentVerifyJob();
   friend class base::RefCountedThreadSafe<ContentVerifyJob>;
 
   // Called each time we're done adding bytes for the current block, and are
   // ready to finish the hash operation for those bytes and make sure it
   // matches what was expected for that block. Returns true if everything is
@@ skipping 38 matching lines @@
   // Set to true if we detected a mismatch and called the failure callback.
   bool failed_;
 
   // For ensuring methods on called on the right thread.
   base::ThreadChecker thread_checker_;
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_CONTENT_VERIFY_JOB_H_